Bobbin holding device for magazines



y 2, 1933- R. G. TURNER 1,907,018

BOBBIN HOLDING DEVICE FOR MAGAZINES Filed Aug. 3, 1931 lllllilllllh 4/Smientor Rmhaur'd B. Turner (lttofnex; s

Fatented R ley 23, 1933 CROMPTON & KNO'WLES LOOIVI WORKS, 0F HORSES-TEE,

.PORATION OF MASSACHUSETTS TEASSACHUSETTS, A COR- BOIBBIN HOLDING DEVICEFOR MAGAZINES Application filed August 3, 1931.

This invention relates to an automatic weft replenishing loom andparticularly to the magazine in which a supply of weft carriers orbobbins is held in reserve.

In certain types of magazines the bobbins are transferred directlyrearward from the magazine to the shuttle necessitating openings in therear side of the magazine to permit such rearward delivery of thebobbins.

It is the object of my present invention to provide improved andsimplified. means for yieldingly preventing accidental escape of abobbin from a magazine of this type but permitting rearward transfer anddelivery of the bobbin when required.

A further object of the invention is to provide holding devices whichwill also prevent rotation of the bobbins in the magazine, thus avoidingentangling of the weft ends.

My invention further relates to certain arrangements and combinations ofparts which will be hereinafter described and more particularly pointedout in the appended claims.

A. preferred form of the invention is shown in the drawing, in whichFig. 1 is a plan view of parts of a weft re plenishing loom embodying myimprovements and Figs. 2, 3 and 4 are sectional end elevations takenalong the lines 22, 33 and 4& respectively in Fig. 1.

Referring to the drawing, 1 have shown a portion of a breast beam 10having a magazine M mounted on and supported thereby. I have also shownshuttles S positioned in upper and lower shuttle boxes on a lay 11having the usual forward and rearward swinging movement. Each shuttle Sis retained in its shuttle box by a binder 12 having an opening 13through which a bobbin B may be inserted. Additional openings 14: areprovided in the back box plate through which the exhausted bobbins maybe ejected.

The bobbins B are held in superposed position by front guideways 16 andrear guideways 17 formed in the opposite end members of the magazine M.The rear guideways 17 are broken away as indicated at 18 and 19 in Figs.2 and 3, opposite the openings 13 in the binders 12, so that a bobbin Bcan be trans Serial No. 554,684.

ferred from the magazine M to the upper or lower shuttles by a directrearward movement.

Upper and lower transferrers 20 and 21- (Figs. 2 and 3) are positionedopposite the first and third bobbins B, counting from the bottom of themagazine. Each of these transferrers is provided with a lever 25,swingmg about a fixed pivot 26 on the breast beam and having a pin andslot connection with the illTllDSfQIlGl, as indicated at 27. Each lever25 isalso provided with a projection 30 positioned for engagement by ahook 31 pivoted at 32 on an actuating lever The lever 33 has a regularforward and rearward movement and the hooks 31 are normally held ininoperative position, as indicated in Fig. 1, by springs not shown. Thehooks 31 may be selectively moved to opera tive position by rods 34 and85, controlled by weft detecting mechanism not shown.

The transfer and weft detecting mechanisms form no part of my presentinvention but are of a usual commercial form.

lVith the construction thus far described, it will be evident that thebobbins B opposite the openings 18 and 19 will be liable to rollrearward through the openings if no provision is made to prevent suchmovement.

For this purpose I provide magnets 40, 41, 42 and 43 opposite the twoends of the 1st and 3rd bobbins B and I provide the bobbins B with buttelements 4L5 and tip elements 46 of iron or steel or some suitablemagnetic metal. I also provide batteries C and D or other suitablesources of current by which the magnets are continuously energized whilethe loom is in operation.

The magnets 40 to 43, when thus energized, attract the metal portions 45and 46 of the 1st and 3rd bobbins B, drawing them forward away from theopenings 18 and 19 and also holding them from relative rotation.

I thus not only prevent accidental rearward escape of the bobbinsthrough the openings 18 and 19, but I also prevent angular movement ofthe bobbins, due to the vibration of the loom. This is an importantadvantage, as such angular movement frequently causes entangling andbreakage of the weft ends.

While accidental rearward escape of the bobbins is thus prevented, thebobbins are 5 yieldingly held so that transfer by one or the other ofthe transfer members 20 and 21 may be readily effected.

While I have shown the invention embodied in a double shuttle loom inwhich provision is made for transferring either the 1st or 3rd bobbin inthe magazine, it will be evident that the invention is equallyapplicable to a single shuttle loom or to a drop box loom having asingle box at the magazine end.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed otherwise than as setforth in the claims, but what I claim is I 1. In an automatic loom, aweft carrier magazine having a substantially vertical weft carriercompartment with a delivery opening in the rear wall thereof, andmagnetic means to draw a bobbin forwardly and away from said opening andto hold said bobbin yieldingly from rearward displacement.

2. In an automatic loom, a weft carrier ma azine havin a substantiallvertical weft carrier compartment with a delivery opening in the rearwall thereof, and magnetic means to prevent accidental rearward escapeof a bobbin through said opening, said magnetic means cooperating with abobbin in said magazine having magnetic material in the butt and tipportions thereof.

3. In an automatic loom, a weft carrier magazine having a substantiallyvertical weft carrier compartment with a delivery opening in the rearwall thereof, said magazine being supplied with bobbins having portionsof magnetic material in the butt and tip ends thereof, magnets mountedopposite to and forward of the magnetic portions of a bobbin positionedopposite said delivery opening, and means to energize said magnetsduring the operation of the loom.

4:. In an automatic loom, a weft carrier magazine having a substantiallyvertical weft carrier compartment with delivery openings rearward andopposite the 1st and 3rd bobbins therein, bobbins for said magazinehaving magnetic material in the butt and tip portions thereof, andseparate magnets mounted forward of and opposite to the magneticportions at both ends of the first and third bobbins respectively andprevent- GO igg accidental rearward displacement there- In testimonywhereof I have hereunto affixed my signature.

RICHARD GREENLEAF TURNER.

